Remember, the depositors were “insured”, but only by the Cypriot government.
Every sovereign state insures the depositors at institutions in their borders. There is not cross border deposit insurance.
That’s why these bank accounts had the interest rates they did.
And of course, when you’ve stolen the money in the first place, being a Russian government official, anything you get to keep is an infinite return. They are the scum of the earth.
Armed and motivated scum of the earth.